TO SEN. HILLARY Clinton's campaign, the race for the Democratic nomination has come down to electability: I can win, she argues, because I can carry the big states necessary to get Democrats over the top.

That implies her Democratic rival, Sen. Barack Obama, can't win all those same big states, a notion certainly open to debate. But the argument misses a bigger point: The entire U.S. electoral map could be redrawn in 2008.